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Pacific Northwest Region
Boise, Idaho
Media Contact:
Kate Puckett
509-575-5848 Ext. 205

Released On: April 29, 2004

Reclamation to Begin Releasing Water from Bumping Reservoir
The Bureau of Reclamation's Yakima Field Office announced today that flows from Bumping Lake Reservoir into the Bumping River will begin increasing around May 1. Current flows from the dam are about 150 cubic-feet-per-second. As of April 29, the storage level at the reservoir was about 4,000 acre-feet below the active capacity storage level of 33,700 acre-feet.

Between May 4 and May 7, Bumping Lake Reservoir is expected to approach the active capacity storage level and then flows into the lake will pass unregulated over the spillway and through the regulating gates. The current inflow rate of spring runoff into the reservoir is approximately 600 cubic feet per second. Once the reservoir is full, flows into Bumping River may range between 200 and 1000 cubic feet per second (or higher) during the spring runoff period.

Bumping Lake Dam and Reservoir is part of Reclamations Yakima Project and is located about 29 miles northwest of Naches, Washington. The 61-foot high structure was built in 1910.

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Reclamation is the largest wholesale water supplier and the second largest producer of hydroelectric power in the United States, with operations and facilities in the 17 Western States. Its facilities also provide substantial flood control, recreation, and fish and wildlife benefits. Visit our website at www.usbr.gov.